mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-11-23 10:09:54 +00:00
108 lines
3.7 KiB
C++
108 lines
3.7 KiB
C++
/*
|
|
* Copyright (c) 2023 Huawei Device Co., Ltd.
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "ecmascript/vtable.h"
|
|
#include "ecmascript/layout_info-inl.h"
|
|
|
|
namespace panda::ecmascript {
|
|
VTable::Tuple VTable::CreateTuple(const JSThread *thread, JSTaggedValue phc,
|
|
const JSHandle<JSTaggedValue> &owner, uint32_t propIndex)
|
|
{
|
|
DISALLOW_GARBAGE_COLLECTION;
|
|
JSHClass *phcPoint = JSHClass::Cast(phc.GetTaggedObject());
|
|
LayoutInfo *layoutInfo = LayoutInfo::Cast(phcPoint->GetLayout().GetTaggedObject());
|
|
JSHandle<JSTaggedValue> name(thread, layoutInfo->GetKey(propIndex));
|
|
|
|
// get type
|
|
JSTaggedValue typeVal;
|
|
PropertyAttributes attr = layoutInfo->GetAttr(propIndex);
|
|
if (attr.IsAccessor()) {
|
|
typeVal = JSTaggedValue(VTable::TypeKind::ACCESSOR);
|
|
} else {
|
|
typeVal = JSTaggedValue(VTable::TypeKind::FUNCTION);
|
|
}
|
|
JSHandle<JSTaggedValue> type(thread, typeVal);
|
|
|
|
// get offset
|
|
uint32_t propsNumber = phcPoint->NumberOfProps();
|
|
int entry = layoutInfo->FindElementWithCache(thread, phcPoint, name.GetTaggedValue(), propsNumber);
|
|
ASSERT(entry != -1);
|
|
uint32_t offsetInt = phcPoint->GetInlinedPropertiesOffset(static_cast<uint32_t>(entry));
|
|
JSHandle<JSTaggedValue> offset(thread, JSTaggedValue(offsetInt));
|
|
|
|
CVector<JSHandle<JSTaggedValue>> vec {name, type, owner, offset};
|
|
return VTable::Tuple(vec);
|
|
}
|
|
|
|
VTable::Tuple VTable::GetTuple(const JSThread *thread, uint32_t tupleIdx) const
|
|
{
|
|
CVector<JSHandle<JSTaggedValue>> vec;
|
|
for (uint32_t loc = 0; loc < ITEM_NUM; ++loc) {
|
|
JSTaggedValue val = Get(tupleIdx * TUPLE_SIZE + loc);
|
|
vec.emplace_back(JSHandle<JSTaggedValue>(thread, val));
|
|
}
|
|
return Tuple(vec);
|
|
}
|
|
|
|
void VTable::SetByIndex(const JSThread *thread, uint32_t idx, const VTable::Tuple &tuple)
|
|
{
|
|
uint32_t beginIdx = idx * TUPLE_SIZE;
|
|
for (uint32_t i = 0; i < TUPLE_SIZE; ++i) {
|
|
uint32_t currIdx = beginIdx + i;
|
|
JSTaggedValue val = tuple.GetItem(TupleItem(i)).GetTaggedValue();
|
|
Set(thread, currIdx, val);
|
|
}
|
|
}
|
|
|
|
void VTable::Trim(const JSThread *thread, uint32_t newLength)
|
|
{
|
|
TaggedArray::Trim(thread, newLength * VTable::TUPLE_SIZE);
|
|
}
|
|
|
|
int VTable::GetTupleIndexByName(JSTaggedValue name) const
|
|
{
|
|
DISALLOW_GARBAGE_COLLECTION;
|
|
uint32_t len = GetNumberOfTuples();
|
|
if (len == 0) {
|
|
return -1;
|
|
}
|
|
|
|
[[maybe_unused]] EcmaString *str = EcmaString::Cast(name.GetTaggedObject());
|
|
ASSERT_PRINT(EcmaStringAccessor(str).IsInternString(), "The name of the property is not an intern string");
|
|
|
|
for (uint32_t index = 0; index < len; ++index) {
|
|
JSTaggedValue nameVal = GetTupleItem(index, VTable::TupleItem::NAME);
|
|
if (nameVal == name) {
|
|
return index;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
bool VTable::Find(JSTaggedValue name) const
|
|
{
|
|
return GetTupleIndexByName(name) != -1;
|
|
}
|
|
|
|
JSHandle<VTable> VTable::Copy(const JSThread *thread, const JSHandle<VTable> &vtable)
|
|
{
|
|
uint32_t length = vtable->GetLength();
|
|
ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
|
|
JSHandle<TaggedArray> copyVtable = factory->CopyArray(JSHandle<TaggedArray>(vtable), length, length);
|
|
return JSHandle<VTable>(copyVtable);
|
|
}
|
|
} // namespace panda::ecmascript
|